Where can I get High Rez Earth Maps? (I am PIXELMAGIC!!!)

I had to use my friend's screen name because mine is being a bizotch. A couple of months ago, someone posted a link to NASA maps hosted at nasa.gov for High rez maps of the earth for use on a 3D model. I need to know what that link was fairly quickly. The map sizes were somewhere around 8000x4000 pixels in size. If anyone knows where I can get these maps or even higher rez, I would appreciate it greatly.